Binding sites of sorbed uranyl ion in the cell wall of Mycobacterium smegmatis期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Binding sites of sorbed uranyl ion in the cell wall of Mycobacterium smegmatis

Authors:	Yves Andres H.John MacCordick Jean-Claude Hubert

Affiliation:	Laboratoire de Microbiologie, URA CNRS D-1481, UniversitéLouis Pasteur, Institut Le Bel, F-67000 Strasbourg, France; Laboratoire de Chimie Nucléaire, CRN, B.P. 20, F-67037 Strasbourg Cedex 2, France

Abstract:	Abstract A study of cell-wall site interaction of uranyl ion adsorbed by non-proliferative suspensions of Mycobacterium smegmatis at pH 1 has been carried out using extracts of arabinogalactan-peptidoglycan and phospholipids obtained from whole cells treated under sorption conditions. Evidence for binding of UO₂²⁺ by constituent P-lipids was provided by comparative ³¹P-NMR and IR spectroscopic measurements of the isolated wall fractions and of the model complex uranyl-phosphatidyl inositol.

Keywords:	Uranyl ion Binding sites Phospholipid Peptidoglycan Mycobacterium smegmatis